PHYSICAL: breaking glass, boiling water, ripping paper, breaking pencil, water vapor condensing, melting butter, cutting grass, smashing watermelon, evaporating water, melting ice, condensation on grass, freezing water, CHEMICAL: corroding pipes, burning forest, firework exploding, rusting car, photosynthesis, ripening bananas, decomposing leaf, milk souring, roasting marshmallows, digesting food, a precipitate forming,

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